Question 25357
ln ((square root x) divided by (y square root z)).
PUT BRACKETS PROPERLY
LN{SQ.RT(X)/(Y*SQ.RT(Z))}IT MEANS SQ.RT.X IS DIVIDED BY  BOTH Y AND SQ.RT.Z.
SO WE GET -O.5 LN Z AND NOT +0.5 LN Z 
WHERE AS IF IT HAD BEEN 
LN{SQ.RT(X)/(Y)*(SQ.RT(Z)},IT COULD BE TAKEN AS 
LN{(SQ.RT(X))*(SQ.RT(Z))/(Y),WHEN YOUR ANSWER IS OK. SO PROPER USE OF BRACKETS IS VERY IMPORTANT.HOPE YOU UNDERSTOOD. 
i got .5lnx-lny+.5lnz, but the last part is supposed to be -.5lnz. what did i do wrong? thanks